Stopping device



Sept 29, 1925.

M. L. DODGE s'rornua nnvrcn Filed A i-u 24.'- 192a l NTOR Patented Sept. 29, 1925.

UNITED STATES PATENT; OFFICE.

MERTON L. noncn, or SEATTLE, WASHINGTON, AssIcnon To SEATTLE ASTORIA mo'n worms.

STOPPING DEVICE.

Application filediApril M, 1 923. Serial No. 634,316.

To all whom it may concern:

Be it known that I, MEaToN L. Doncn, a

citizen of the United. States, and aresident of Seattle, King County, NVashington, have 5 invented certain new anduseful Improvements in Stopping .Devices, off which the following is a specification; i

This invention relates to an automatic stopping device and has for its object to provide such a device to be used as a means for automatically. stopping ya can sealing machine.

hIore particularly the invention, resides in the provision. of a. stopping device for use with can sealing machines of that class which operate under the control. of automatic stop mechanism like, character to that as disclosed in my co-pending application for Automatic stop for can Imaking machines, filed February-6', 1923,. under Serial No. 617,397.

Explanatoryof the invention Iwill state here that can sealingmachines of the type with which the present device is used are,

- as a rule, equipped with means for applying identifying numbers to the ends of'the cans as they pass throughthe machine and these numbers are manually changed whenever the character of the canned product is changed. For example, cans containing red salmon would be given a different serial number from those containing another product. In most factories an attendant' is stationedv at each machine to watch the cans as they are delivered to the sealing mechanism, and when-the attendantnotes a change in the character of the product, or, when he' is notified by the can filler :that a change has been made, he will stop the ma-- chine at the proper time ,and change the numbers of the stamping or printing die.

Such machine's also are equipped with mechanism whereby they will be automatically stopped should a can body he delivered into the machine without the delivery of a cover or end therefor, and it is with machines so equipped that the present device is intended to be used.

The object ofthis invention, therefore,has been to provide a substitute fora can that may be placed by a person, who may be the can'filler, on the conveyor whereby the filled cans are delivered to the sealing machine and which will act automatically to stop the machine at the proper time so that the change or of a similar of numbers can be made, or it can used for the purpose of stopping. the machine at the end of a run and thereby make it unnecessary for an attendant to be stationed at the machine .for these particular purposes.

In accomplishing the objects of the invention I have provided theimproved details of construction thep-referred forms of which are illustrated n the accompanying drawings, wherein- Y Figure 1 is a side elevation of a part of a machine that is adapted to seal the ends of cans, and which embodies means whereby it may be stopped by a device of the present type of construction.

Figure 2 is a side'view, partly in section, of the stopping device. Figure 3 is an enlarged, horizontal section taken on the line 3-3 in Figure 1. Figure 4 is a side view of a stopping device of an alternative type". a

Referring more in detail to the drawings- 1 designates,as a whole, a machinewith which the presenttype of stopping device is adapte'dto be used, and 2 designates a can body that is being moved into the" machine by means of a conveyer belt 3 operat ing about a driven sprocket wheel 30.' Sup ported by the frame of the machinearevertical guide standards 4 wherein .a stack' of can ends 5 are located and which-are adapted to be, delivered, one at a time,- from the lower end of the stack into the machine. and to be advanced accordingly as the can bodies 2 are advanced. The canend feeding mechanism, not shown,'is operated under the-control of a trip' lever 6 that is extended into the path of the advanced cans,"and which is engaged by each passing can body and is actuated thereby to effect the operation of the feeding mechanism whereby the ends are delivered singlyinto the machine. During the operation of'the machine the ends are picked up by a suction cuparrangement 'In such machines provision has been made whereby, should the mechanism that feeds the machine for the ends of the cans into any reason fail to operate and thereby not deliver a can end, or should the body supply become exhausted, the machine will be auto matically stopped; this being accomplished in the machine herein illustrated by the op eration of mechanism under the control of leverslO, and 11 that are respectively sup: ported in the paths of travel of the ends and bodies. These levers are so mounted that ordinarily they will be simultaneously engaged by the body and end of a can, and when both are engaged and actuated, the machine will continue to operate but should one lever be. moved without the other, the machine will be. stopped. This would be the result if a can body would enter the machine without an end being delivered.

- 7 cans. 2 near their The stopping device, which Ihave provided and which may be advanced by the conveyor into the machine to stop the same, comprises a cylindrical body portion 15 of the same diameter as the cans which are being delivered to the machine, and provided at its opposite ends with reduced neck portions 16 upon which end plates'17 are fixed by means" of screws 18. The diameter of the plates 17 is the same as the body portion and they are. located concentric therewith. The length of the can between. the outer faces of the plates would be slightly less than the length of the can bodies 2' to prevent damage to 'the machine should these devices pass through the machine. The construction pro vides annular recesses 19. between the plates 17 and the body 15.

When it is desired to stop the machine one of the stopping devices is placed on the conveyor 3 inthe same position as a filled CELD'WOUld? ordinarily be placed and it is carried by theconveyerinto. the machine. When it passes the end of the lever 6, instead of actuating it pivotally' as the. ordinary can 2 would, it passes by without etfectinga movement and. no. cover is delivered. tofthe ma chine. Thisis due to the fact that the recessed end of the device lies in the same plane as the. lever 6. and permits the can to pass without effecting any movement of the lever. Then, when the device passes into the machine and engages the lever 11 and actuatesit and: the lever 10 is not simultaneously actuated; due to the absence of a can end, the machine will be stopped, due to the operationof'parts as is described in. the application. previously referred to. It willibe noted: that the normal position of the lever 6 provides that it will engage the lower ends as. they are advancediand, for this reason I have located.- the channels 19 adjacent the ends of the body of the stopping device; the channels being provided at each end so that it will make no difference. whether-the device is inverted or not. If. the location of the lever 6sho-u1dbe raised; or lowered, this of course, would;

necessitate a relocation of the channels or receses 19.

lVhile I have provided that the machine here illustrated be stoppedas a result ofthe lever 6 not being actuated, it is readily apparent that machines that are equipped with automatic stop mechanism of the type illustrated and described in my co-pending application can be stopped by the passing of a device through without effecting the actuating of the lever 11. In such instance the recess 19 would be located in accordance with the location of the lever 11 and in the present instance would as is shown in Figure 4:.

The device ,may be made of a heavyma terial so that it will be of substantially the same weight as a filled can, so that it would effectively serve its'purpose.

be centrally of the body Having thus described my invention, what I claim as new therein by Letters-Patent, is: I

1. In a machine of the class described, the combination with mechanism for feeding articles into the machine anda trip lever and desire to secure adapted to be moved by each article as itis delivered and which, if not actuated, operates to. stop the machine, of an automatic stopp ng device, comprlslng a body conformmg 1n general outline to the shape of the said articles and provided with a recess which will permit the device, whennused in lieu of one of said articles, to. pass. by-the lever without causing its movement.

2. In a machine of combination with mechanism. for feeding articles intothe machine and a trip lever adapted to be-mioved by. each article as it is delivered and whic if not actuated, operates to stop the machine-of an automatic stopping device, comprising: a body conforming in general outline to, the shape of the said articles and provided with an encircling recess. which will. permit .the device, when used in lieu of one of said-articles, to pass by the lever without causing its movement.

MEBTON; L. DODGE;

the class describedethe 

